Blade wheel



Spt. 1944. H. c. SWIFT I 2,357,618

BLADE WHEEL Filed May 25, 1941 INVENTOR.

'- W%WL Patented Sept. 5, 1944 2,357,618 BLADE WHEEL Harvey 0. Swift,Detroit, Mich., assignor to Hydraulic Brake Company, Detroit, Mich, acorporation of California Application May 23, 1941, Serial No. 394,929

2 Claims.

This invention relates to blade wheels, and more particularly to bladesor vanes and the mountings thereof.

Broadly the invention comprehends a composite vane having fasteningmeans for support of the vane. In an illustrated embodiment of theinvention a flat metallic plate has thereon between its ends a rubber orplastic vane of the desired character. The ends of the plate projectbeyond the vane and are slotted to provide lugs for securing the vaneagainst displacement.

An object of the invention is to provide a composite vane having meansfor securing the vane against displacement.

Another object of the invention is to provide a rubber or plastic vanehaving a metallic core extended beyond the vane to provide fasteningmeans.

Yet another object of the invention is to provide a blade wheel havingspaced shrouds provided with registering slots for the reception ofblades, and means carried by the shrouds for locking the blades in theslots.

Other objects and advantages of the invention will appear from thefollowing description taken in connection with the drawing forming apart of this specification, and in which- Fig. 1 is a side elevation ofa blade wheel incor erating the invention;

Fig. 2 is a sectional view substantially on line 22 Fig. 1;

Fig. 3 is a fragmentary view of the shroud; and

Fig. 4 is a fragmentary view of the lock ring.

Referring to the drawing, I 8 represents the body of a wheel havingthereon a disc or shroud l2 provided with spaced openings or slots ll. Aring l6 mounted for slight rotation on the disc or shroud has spacedslots I8 adapted to register with the slots in the shrouds and parts 20adapted to overlay the slots. The ring I6 is supported on screws 22threaded into the shroud,

and the scr'ews'also serve to secure the ring in adjusted position. v

A plurality of blades indicated generally at 24 each includes a flatmetallic plate or core 26 having adjacent their respective ends,oppositely disposed. transverse slots 28, providing lateral lugs 30, andvulcanized or molded to this metal core 26 between the slots 28 is arubber or plastic vane 82 of any desired character or profile.

As shown, one end or each of the metallic cores is inserted in the slotsll of the disc or shroud with the edges of the vanes abutting theshroud. The ring it is then slightly rotated so that the parts 20thereof overlay the slots l4 and fit snugly in the slots 28 in the corewith the adjacent lug 30 embracing the ring. The screws 22 are thenadjacent to lock the ring against displacement.

A disc or shroud 34 corresponding to the shroud I2 has slots 36registering with the slots I4 in the shroud 12. The slots 36 receive theother ends of the cores 26, and a lock ring 38 corresponding to the lockring I6 is mounted for slight rotation on the shroud 34 and has partsadapted to enter the slots 28 in the core and to bear against the lugs30 so as to effectively secure the blades between the shrouds l2 and 36and the ring 38 is secured in place as by screws 40.

Blades 01' this particular structure may be provided at a very smallcost and are susceptible 'of being easily and quickly assembled in ablade wheel of any type desired.

While this invention has been described in connection with certainspecific embodiments, the principle involved is susceptible of numerousother applications that will readily occur to persons skilled in theart. The invention is, therefore, to be limited only as indicated by thescope ofthe appended claims.

Having thus described the various features of the invention, what Iclaim as new and desire to secure by Letters Patent is,

1. Ablade wheel comprising a disc having spaced slots, a plurality ofcomposite blades arranged on the wheel, each blade having a metalliccore embedded in plastic material having a streamlined contour, the corehaving parts ex-' tended beyond the sides of the blade for insertion inthe slots and oppositely disposed notches in the extended parts, and aretaining ring slidable on the disc Having parts received by thenotches.

2 A blade wheel comprising a disc having rectangular slots, a pluralityof blades each' having a metallic core of cross-section similar to theslots in the disc,saidcore providing tongues at its respective ends, aring juxtaposed with the disc and having slots of greater area than thecross-section of the core for receipt of the core, and means on the ringadapted to engage the tongues upon shifting oi the ring relative to thedisc so as to lock the blade upon the disc.

HARVEY C. SWIFT.

